#X3D V3.0 utf8
PROFILE Interchange
COMPONENT Texturing:2
COMPONENT Text:1

# Test of MultiTexture.mode values "BLENDxxx"

PROTO MyText [ initializeOnly MFString string "" ] {
  Transform {
    translation 0.6 0.2 0
    children Shape {
      appearance Appearance {
        material Material { diffuseColor 1 1 0 }
      }
      geometry Text { string IS string
        fontStyle FontStyle { size 0.2 } }
    }
  }
}

Transform {
  translation 0 0 0
  children [
    Shape {
      appearance Appearance {
        texture MultiTexture {
          texture [
            ImageTexture { url "data/squirrel.png" }
            ImageTexture { url "data/pattern.png" }
          ]
          mode [ "REPLACE" "BLENDDIFFUSEALPHA" ]
        }
        material Material { transparency 0.5 }
      }
      geometry DEF MyQuad IndexedFaceSet {
        coord Coordinate { point [ -0.5 -0.5 0, 0.5 -0.5 0, 0.5 0.5 0, -0.5 0.5 0 ] }
        coordIndex [ 0 1 2 3 ]
        texCoord TextureCoordinate {
          point [ 0 0, 1 0, 1 1, 0 1, 0 0, 1 0, 1 1, 0 1, ]
        }
        solid FALSE
      }
    }
    MyText { string [
      "BLENDDIFFUSEALPHA"
      "Blends 2 textures using Material.transparency."
      "In this case: 0.5 * squirrel + 0.5 * pattern" ]
    }
  ]
}

Transform {
  translation 0 -1.1 0
  children [
    Shape {
      appearance Appearance {
        texture MultiTexture {
          texture [
            ImageTexture { url "data/squirrel.png" }
            ImageTexture { url "data/pattern.png" }
          ]
          mode [ "REPLACE" "BLENDTEXTUREALPHA" ]
        }
        material Material { }
      }
      geometry USE MyQuad
    }
    MyText { string [
      "BLENDTEXTUREALPHA"
      "Blends 2 textures using current texture alpha."
      "In this case: should be equal to just pattern texture"
      "(as it is opaque, alpha = 1 everywhere)" ]
    }
  ]
}

Transform {
  translation 0 -2.2 0
  children [
    Shape {
      appearance Appearance {
        texture MultiTexture {
          texture [
            ImageTexture { url "data/squirrel.png" }
            ImageTexture { url "data/pattern.png" }
          ]
          mode [ "REPLACE" "BLENDFACTORALPHA" ]
          alpha 0.2
        }
        material Material { }
      }
      geometry USE MyQuad
    }
    MyText { string [
      "BLENDFACTORALPHA"
      "Blends 2 textures using MultiTexture.alpha."
      "In this case: 0.2 * pattern + 0.8 * squirrel" ]
    }
  ]
}

Transform {
  translation 0 -3.3 0
  children [
    Shape {
      appearance Appearance {
        texture MultiTexture {
          texture [
            ImageTexture { url "data/squirrel.png" }
            ImageTexture { url "data/pattern.png" }
          ]
          mode [ "REPLACE" "BLENDCURRENTALPHA" ]
        }
        material Material { }
      }
      geometry USE MyQuad
    }
    MyText { string [
      "BLENDCURRENTALPHA"
      "Blends 2 textures using previous texture alpha."
      "(Yes, the name is misleading, better name would be BLENDPREVIOUSALPHA.)"
      "In this case: should be equal to just pattern texture"
      "(as squirrel texture is opaque, alpha = 1 everywhere)" ]
    }
  ]
}

# Viewpoint ------------------------------------------------------------------

# Camera settings "encoded" in the VRML/X3D declaration below :
# direction 0 0 -1
# up 0 1 0
# gravityUp 0 1 0
Viewpoint {
  position 2.690000057220459 -1.7133332490921021 7.204444408416748
  orientation 0 0 1 0
}